Combined cap and funnel for radiator-filling tubes



G. C. HURT.

COMBINED CAP AND FUNNEL FOR RADIATOR FILLINGTUBES.

APPLICATION FILED Aua.21, 19m. I

1,339,562:2 Patented May 11, 1920.

Ill!

TE@ STATE@ PATE 1 ermee.

GEORGE C. HURT, OF BLACKSTQNE, VIRGINIA.

Specification of Letters Patent.

. Patented May 11, 1920.

Application led Augiust 2'1, 1918. Serial No. 250,843.

To all whom it may concern.'

Be it known that I, GEORGE C. HURT, a citizen of the United States,residing at Blackstone, in the county of Nottoway and E'. of Virginia,have invented new and useful Improvements in Combined Caps and Funnelsfor Radiator-Filling Tubes, of which the following is a specification.

This invention relates to a combined cap and funnel for the filling tubeor neck of an automobile radiator which is so constructed that whenapplied to said tube 1n one position it Will serve as a convenient meansfor directing Water `into the tube and when' applied in another orreversed -position to-said tube it Willoperate as a cap therefor inorder to exclude forelgn matter therefrom.

It is the object of this invention to provide a combined cap and funnelfor` this purpose which is ,simple and inexpenslve 1n construction andefficient in operatlon and which can be readily applied to Athe fillingtube for performing either of the above described functions.

In the accompanying drawings: r

Figure l is a vertical section showing my.

combined cap and funnel applied to the filling tube of a radiator 1nsuch manner that the same will serve as a cap therefor.

Fig. 2 is a similar View showing the same applied to the filling tube insuch position that it serves as a Water funnel for the same. Fig. 3 is aplan View of a combined cap and funnel embodying my invention.

Similar characters of reference indicate corresponding parts throughoutthe several views.

l represents the upright filling tube or neck of a radiator such as arecommonly employed on automobiles for cooling the water circulated aroundthe heated parts of the gas engine which drives vthe automobile. In theparticular form of this filling tube shown-in vthe drawings, the same isprovided in the upper end of its bore' with an internal sc reW thread 2'and atthe lower end of this thread with an upwardlyffacing annularshoulder 3, although my invention is applicable to other forms offilling tubes. lVitliin this filling tube is arranged the upper portionof an overfiow or vent pipe 4 through which any excess Water which maybe poured into the radiator as well as any steam or vapors which may begenverated in the radiator are permitted to iow particularly forcooperation with this construction of filling tube and the arrangementof the over-flow pipe therein, is constructed as follows:

' 5 represents an inner annular Wall preferably. of cylindrical ortubular form Which is provided on its periphery adjacent to one endthereof With an external screw thread 6 which is adapted to engage withthe internal screw thread of the filling tube. At its threadedend thisinner wall is closed by a head or diaphragm 7 which latter, in the formshown in Figs. l and 2, is preferably dished inwardly so that uponscrewing this inner Wall into the filling tube until the respective endof the same engages with the shoulder 3 of the tube, said head will bespaced from the upper end of the overfioW pipe and thereby permit thefree escape of. Water as Well as steam or vapor from the upper part ofsaid filling tube outwardlyv through the overflow pipe. Adjacent to thatend of the inner wall opposite to that which is closed by the head 7,this Wall is provided With a water inlet which is preferably constructedin the form of a plurality of openings 8 which are arranged in anannular row around this inner wall and in such position that when thisdevice is applied to the filling tube to serve as a cap, t e spacewithin the inner wall will be cut off .rom communication -with theinterior of the filling tube and thus exclude the entrance of anyforeign matter into the radiator.

9 represents an outer annular wall which is preferably constructed ofconical or tapering form and arranged around the inner Wall. This outerwall is preferably of such length that its large end extends aconsiderable distance beyond that end of lthe inner- Wall which is-closed by the liead'7, and the opposite end of this inner Wall isconnected with the corresponding small end of the outer Wall in suchmanner that a seat is formed for engaginfr the upper end of the -f iiiln the preferred construction, the small end ci the outer wall isconnected with the corresponding end oi the inner wall by a conical webl() which tapers inwardly and in a direction opposite to the taper oi`the outer wall. and the outer iai-e of this web is provided with anannular packing: ring ll oi rubber or siinilai" elastic inaterial whichis oi' corresponding tai'iering forni and constitutes an elastic seatwhich, upon eiigiag ing with the upper end of the tilling tube, as showniu Fig. 2, fornis a tight `ioint therewith, so that upon pouring waterinto the larigji` end of the outer all in this position oftheparts,tliis water will be :oiiducted through the openings iii the innerwall to the interior of the fillinegr tube without liability of any o'l'this water leaking past the joint between the web and the tube andspilling: onto the adjacent external parts o'f the radialor.l lt istherefore possible to always keep the radiator in a clean conditioniiistead of incurring the liability of spotting:

lthe radiator. lWhen this device is employed as a cap t'or the radiatortube, the outer wall flares downwardly around the filling` tiibe andproduces ,a neat and iinished appearance of the same.

By combining the cap and filling funnel in this manner, it isunnecessary to employ,

separate devices ior this purpose as is commonly the case and it alsopositively prevents loss of the Jfunnel as frequently occurs when thesame is iii-ade separate from the cap, so that means for properlyfillingr the radiator with water are always a failable.

ln the preferred ronstructionof this device, the inner and outer walls,the head and the web are niade troni a single sheet of metal bysiiinniugi', stamping or otherwise, but if desired 'these parts may beconstructed in any other suitable manner.

l claim as my invention :l d

1. A combined cap and tunnel for a ra.- diatoifillinpr tube,coinprisingan inner anniilar wall provided with openings iii its side, ahead closing one end oi the space within said inner wali, and an 'outerannuiai wall connected at one of it" ends with the opposite end oi saidinner wall, said inner wall being provided with screw threads forattaching the saine to said radiator filling; tube.

2. :i combined cap and funnel for a ra.-- diator filling),`tiibe,coinprisiiig an inner an- -nular wall provided with openings in.its

side, a head closing one end of the space within said inner Wall, and anouter annular wall surrounding said inner wall and coliiiected at oneof' its ends with the opposite end of said inner wall, said innerwallbeingproi'ided with screw threads for attaching the saine to saidradiator filling tube.

$3. A combined cap and tunnel for a radiator filling tube, comprising aninner aniiiilai' wall provided with openings in its side, a headclosing` one end of the space within said inner tall, and an outerconical wall surrounding' said inner wall yand connected at its sinallend with the opposite end oi' said inner wall, said inner wail beingprovided with screw threads for attaching the saine to said radiatoriilling tube.

4. A combined cap and funnel for a radiator filling tube, comprising an'inner annular wall provided -with openings in its side, a head closingrone end of the,space within said inner wall, an outer conical Wallsurroiiiidin; r said inner wall7 and a conical' web connecting;r thesiiiall end oi: said outer 'all with the oppositeend of said inner wall,said inner wall being provided with screw threads for attaching;A thesame to said radiator-filling tube.

5. A combined cap and :tunnel for a radiator filling tube, comprising aninner annular wall provided with openings in its -side.. a head 'closing-oiie end of the space within said inner wail, an outer conical wallsii-rrfniiii'line said inner wall, a conical web connecting the sinallend of' said outer wall with the opposite end of the inner wall, and a`packingarranired en the outer 'face of said web. I

6. A. combined cap and ifiiniiei torv a. radiator filling' tube,coniprisingl an inner aniniiar wali provided with openings in its side,a head closing one end oi' the space within said inner wall, and anouter annular wall siii-rounding said inner wall and connected at one ofits ends with the opposite end ot' saidinner wall, said inner wall beingprovided on its periphery with an external screw thread aiiapted toengage with the screw threadfof said filling tube.v

T. fi diatof filling tube, comprising an inner annular Wall providedwith o enings in its side, a head closing one en of the space withinsaid inner wall, and an outer annular 'all surrounding said inner .wallland coricombined cap and funnel for a ra-v` neeted at one of its endswith-tlievopposite end of said inner Wall, said head being

